
/*
 * Copyright (c) 2005-2006 Rincon Research Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the
 *   distribution.
 * - Neither the name of the Rincon Research Corporation nor the names of
 *   its contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
 * RINCON RESEARCH OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE
 */
 
/**
 * @author David Moss
 */
 
module RadioOnTimeP {
  provides {
    interface RadioOnTime;
  }
  
  uses {
    interface Counter<TMilli,uint64_t>;
    interface PowerNotifier;
  }
}

implementation {

  uint64_t timeOn;
  
  uint64_t totalRadioOnTime;
  
  /***************** RadioOnTime Commands ****************/
  /**
   * @return the total amount of time, in seconds, the radio has
   *     been turned on.
   */
  command uint32_t RadioOnTime.getTotalOnTime() {
    return (totalRadioOnTime / 1024);
  }
  
  /**
   * @return the actual duty cycle % moved over two decimal places.
   *     In other words, 16.27% duty cycle will read 1627.
   */
  command uint16_t RadioOnTime.getDutyCycle() {
    return totalRadioOnTime / (call Counter.get());
  }
  
  
  /***************** PowerNotifier Events ****************/
  event void PowerNotifier.on() {
    timeOn = call Counter.get();
  }
  
  event void PowerNotifier.off() {
    totalRadioOnTime += (call Counter.get()) - timeOn;
  }
  
  /***************** Counter Events ****************/
  async event void Counter.overflow() {
  }
  
}
